ST. CHARLES COUNTY, Mo. (KMOX) – A longtime maintenance worker at the St. Charles School District has been charged with sexually assaulting two foster children in his home.

Samuel Sanchez-Mora, 39, of St. Peters is charged with one count of statutory sodomy and fourth-degree assault.

Prosecutors say the victims are no longer under Sanchez-Mora’s care. They say the children disclosed the incidents to their current foster-care providers.

According to a news release from Prosecuting Attorney Tim Lohmar, he was registered by Missouri to provide respite foster care.

Sanchez-Mora had been with the district since the 2008-09 school year. The district says he passed all background checks and, as a maintenance worker, did not work directly with students. The district says the victims were not students, and the incidents did not happen on school grounds.

The district released the following statement, in part:

“Sanchez was hired by the district during the 2008-09 school year and passed all background and fingerprint checks. As a maintenance employee, Sanchez did not work directly with students.

According to St. Peters Police, the alleged victim is not a City of St. Charles School District student and the alleged incident did not occur on any school grounds. The safety of all students remains the district’s top priority and we will cooperate with the authorities in any way possible.”

Sanchez-Mora resigned and was arrested Monday. He is being held on a $100,000 bond.

The investigation is ongoing. Anyone who may have information about other potential victims is asked to contact the St. Peters Police Department at 636-477-6600.